I've seen the diff sensor bad. Keep in mind it also uses the one in the tranny if your car is late enough production to have a .6 tranny. (easy to spot, W-S switch on the shifter)



If your scanner is able to read it, check actual valves for the rear speed sensor readings.


Joe

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Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
919-881-0364